Press n or j to go to the next uncovered block, b, p or k for the previous block.
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* @license Apache-2.0
*
* Copyright (c) 2018 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
'use strict';
// MODULES //
var hasOwnProp = require( '@stdlib/assert/has-own-property' );
var NAMESPACE = require( './../namespace.js' );
var EXAMPLES = require( './../examples.js' );
var logger = require( './../console.js' );
// VARIABLES //
var NO_EXAMPLE_TEXT = 'No example available.';
// MAIN //
/**
* Returns a function for evaluating examples within a REPL.
*
* @private
* @param {REPLServer} repl - REPL server
* @returns {Function} function to evaluate examples
*/
function wrapper( repl ) {
return example;
/**
* Executes an example.
*
* @private
* @param {*} alias - variable alias or value
* @returns {void}
*/
function example( alias ) {
var eg;
var i;
// First check if provided an alias...
if ( hasOwnProp( EXAMPLES, alias ) ) {
eg = EXAMPLES[ alias ];
} else {
// Search through namespace values to see if provided a known value reference...
for ( i = 0; i < NAMESPACE.length; i++ ) {
if ( alias === NAMESPACE[ i ].value ) {
if ( hasOwnProp( EXAMPLES, NAMESPACE[ i ].alias ) ) {
eg = EXAMPLES[ NAMESPACE[ i ].alias ];
}
break;
}
}
// If still unable to resolve an example, inform the user that no example is available...
if ( eg === void 0 ) {
return logger.log( NO_EXAMPLE_TEXT );
}
}
// Evaluate the example:
repl.write( '\n' );
repl.displayPrompt();
repl.write( eg );
}
}
// EXPORTS //
module.exports = wrapper;
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